US1083952A

US1083952A - Shovel, spade, and scoop.

Info

Publication number: US1083952A
Application number: US75044013A
Authority: US
Inventors: John S Surbaugh
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-02-24
Filing date: 1913-02-24
Publication date: 1914-01-13
Anticipated expiration: 1931-01-13

Description

J. S. SURBAUGH.

SHOVEL, SPADE, AND scour.

APPLICATION FILED PERM, 1913- 1,088,952 Patented Jan. 13, 1914.

0am w ATTORNEYS.

UNITED STATES PATENT OFFICE- JOHN S. SURBAUGH, OF VINCENNES, INDIANA.-

SHOVEL, SPADE, AND SCOOP.

Specification of Letters Patent.

Application filed February 24, 1913. Serial No. 750,440.

Patented Jan. 13,1914.

and scoops and the objcct'of'the invention consists in the provision'of shovels, spades and scoops" of the'*"above character which will be simple in" construction, light in weight, strong, durable andcheapgtomanu facture. j

A further object of-the invention consists in the provision of certain means for rem- .forcing the weak portions of the shovel,

spade and scoop blades as, for instance, at the point of the blade and at the end of the from I accomplish the above objects of the invention by means of the construction lllustrated in the accompanyin drawings, forming a part hereof, in whic Figure 1 is a top or plan v 1ew of a blank adapted to form the shovel, spade or scoop, the out-er contour of the blank depending on the shape of the die so that the desired class or character of the tool can be produced. Fig. 2 is a cross section of the construction shown in Fig. 1. Fig. 3 is a top or plan view of a completed shovel blade crimped out of the blank shown in Fig. 1. Fig. 4 is a completed blade forming a scoop. Fig. 5 is a completed blade forming a spade. Fig. 6 is a top or plan view of a modified form of blank which can be used in place of the one illustrated in Fig. 1. Fig. 7 is a cross section of the construction shown in Fi 6.

l toferring to the drawings, 10 represents a blank WhlCh is cut from the main body of the sheet metal by means of a suitable die in the usual and well known manner, and this blank terminates in a shank member 11. The blank 10 is placed in a machine for crimpin it into the desired article, namely, to orm'a shovel, spade or scoop blade. The blank 10 consists of a thin piece of sheet steel of a character commonly used in making the class of tools above noted, the stock being rolled to provide a rib 12 whereby the metal is left more thick and thereby adding rigidity and strength to the sheet.

The blank 10 is cut from the stock so that the rib 12 will extend longitudinally through the center of the blank 10 and the shank member 11. After the blank 10 has been crimped into-ablade the shank member 11 isibent to form a hollow sleeve which provides a socket 13 for the reception of the well] known 1 wood handle generally .em-

1 ployed infconnection with these tools. Fig.

3-clearlyshows the reinforcing rib occupying the desired "position after; the shovel blade and the-shank member '11-: have been crimped and properly 'formed; By meansof thiszconstructionit' will be noted that the rib -12 adds rigidity and strength'to the. en tire blade and also reinforces the weakest point of the blade where the frog 14- merges with said blade. When spades and scoops are manufactured from thin sheet metal the metal is apt to break under great stress on a transverse line which intersects the point where the frog merges with theblade. In time the metal along the above noted line will crystallize, causing the blade tobreak, this being particularly true where a light shovel is employed in doing heavy work. I

By using the reinforcing blade 12 in light shovels it so strengthens the blades that ashovel of comparatively light character can be used in doing exceptionally heavy work. From the fact that the rib 12 extends out to the cutting edge of the shovel blade it so strengthens said edge that the shovel can, in many instances, be employed as a pry. This being particularly desirable in looseningand removing boulders, rocks and similar obstructions.

In Figs. 6 and 7 of the drawings, I have illustrated a modified construction wherein the blank from which the shovel blade is formedis provided with a plurality'of the ribs 12. This construction is particularly desirable in shovels, spades and scoops employed in doing exceptionally heavy work.

From the above description, it will be notedthat I have provided a shovel blade which is formed out of material, the strength of which corresponds to that usually em ployed in shovels of similar character, but have so strengthened the material that heavier work can be performed than is now possible in shovels of similar weight of other manufacture and without materially increasing the weight or cost of the material used in such manufacture.

Having thus fully described my said invention, What I desire to secure by Letters Patent, is-

l. A shovel, spade and scoop blade comprising a unit blank having a longitudinally extending thickened portion and provided with an integrally formed shank, a cylinder formed of said shank, and an integral rib formed out of said thickened portion and 10 extending longitudinally through the center of the blade and shank.

2. A shovel, spade and scoop blade comprising a unit blank provided With an integral shank, a cylinder formed of said shank, a frog formed centrally of said blade and merging into said cylinder, and an integrally formed rib extending longitudi-.

nally through the center of said blade, frog and cylinder.

In Witness whereof, I, have hereunto set my hand and seal at Indianapolis, Indiana, this 1st day of October, A. D. one thousand nine hundred and twelve.

JOHN s. SURBAUGH. 1 8.]

Witnesses:

F. W. WOERNER, I. L. LARSON.